[all-commits] [llvm/llvm-project] 688528: [Support] Do not use `llvm::size` in `getLoopPrehe...

[Ben Barham via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 68852812ff00d915bc96816a1454eb7d25cb0cb5
      https://github.com/llvm/llvm-project/commit/68852812ff00d915bc96816a1454eb7d25cb0cb5
  Author: Ben Barham <ben_barham at apple.com>
  Date:   2024-06-08 (Sat, 08 Jun 2024)

  Changed paths:
    M llvm/include/llvm/Support/GenericLoopInfoImpl.h

  Log Message:
  -----------
  [Support] Do not use `llvm::size` in `getLoopPreheader` (#94540)

`BlockT *LoopBase<BlockT, LoopT>::getLoopPreheader()` was changed in
7243607867393a2b8ccd477e95e6f62d00f3206f to use `llvm::size` rather than
the checking that `child_begin() + 1 == child_end()`. `llvm::size`
requires that `std::distance` be O(1) and hence that clients support
random access. Use `llvm::hasSingleElement` instead.



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